APA (7th ed.) Citation

Gibson, J. F. (1968). File on Helen Morgan. Bles.

Chicago Style (17th ed.) Citation

Gibson, John Frederic. File on Helen Morgan. London: Bles, 1968.

MLA (8th ed.) Citation

Gibson, John Frederic. File on Helen Morgan. Bles, 1968.

Warning: These citations may not always be 100% accurate.